[SOLVED] WebEx Zimlet stopped working after upgrade

I noticed that there was a newer version of WebEx Zimlet available. So I decided to undeploy current WebEx Zimlet 2.1.1 and deploy the newer 2.4 version, but after this I've not been able to validate my WebEx host account anymore.

When I go to Zimlets -> WebEx -> Manage Accounts -> Validate Account 1, I get "Test failed. This WebEx account is not valid.", and the only option is to click Ok. When I do that, I'll get a bit more detailed error message saying "Error parsing WebEx XML response or malformed XML". I'll attach screenshots.

I've now tried to undeploy/deploy three latest versions of WebEx Zimlet and they all are giving me now that same error. I've checked that my WebEx account is really working and is not locked or anything. The first time that I deployed version 2.4 of the Zimlet I didn't have "flush cache" checked, could that've something to do with this?

Thanks for your information, we have added the domain name onto the list or proxy and listed as below. Nevertheless, it still not work. I wish to see if I needed to re-deploy the Zimlet or restart the server (or service) before the revision comes into effective?

By the meantime, I wish to see if WebEx Support no longer Zimbra access?

Thanks for your information, we have added the domain name onto the list or proxy and listed as below. Nevertheless, it still not work. I wish to see if I needed to re-deploy the Zimlet or restart the server (or service) before the revision comes into effective?

By the meantime, I wish to see if WebEx Support no longer Zimbra access?

I realize this is an old thread, but it actually helped to guide me in the right direction quite recently. I thought it worthy to mention, however, that 'YOURDOMAIN' means "*.webex.com", not specifically the domain for WebEx is being configured. Services do not have to be restarted in 7.2.0, this is effective immediately.